| 摘要 |
PROBLEM TO BE SOLVED: To provide an easy-to-throw marker ball for crime prevention with an improved hit ratio against a target, positively preventing leakage of a marker agent, and capable of positively breaking a ball body after throwing. SOLUTION: Since there are ribs 15 and 16 for hooking fingers on a ball surface, the marker ball 10 for crime prevention is easy to throw, and the hit ratio of throwing is improved. Since there are no gluing processes of gluing a component of the ball body 11 during manufacture of the ball body 11, in a normal time, leakage of the marker agent 12 from the ball body 11 can be positively prevented. Since there are thin parts 15a and 16a with edges E on outer rims of the ribs 15 and 16, impact force of the ball 10 hitting a criminal after throwing concentrates on the edges E, and the ball body 11 can be positively broken from the thin part 16a. COPYRIGHT: (C)2005,JPO&NCIPI
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